Orchestration state (and related stuff) to update GlusterFS

Prod-Related: PROD-29243
Change-Id: I8ec489b5772f48aae8d6d9a63f4ec160ad61b78f
(cherry picked from commit 22394f4935f4374f3728124f063dafcca0792c23)
diff --git a/README.rst b/README.rst
index 4961b2b..cb81725 100644
--- a/README.rst
+++ b/README.rst
@@ -19,6 +19,18 @@
 * ``glusterfs.client``
    Sets up GlusterFS client
 
+* ``glusterfs.update.server``
+   Update GlusterFS on servers
+
+* ``glusterfs.update.client``
+   Update GlusterFS on clients
+
+* ``glusterfs.update.op_version``
+   Update GlusterFS cluster.op-version option
+
+* ``glusterfs.orchestrate.update``
+   Orchestrate an update of GlusterFS process
+
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